Integrated Circuits (ic) Employing Subsystem Shared Cache Memory for Facilitating Extension of Low-Power Island (lpi) Memory and Related Methods

6. The IC of claim 5, wherein, in response to the IC operating in the second power mode, the LPI memory interface is further configured to provide the third cache line address on the second memory interface.

18. The method of claim 17, further comprising, in response to the IC operating in the second power mode, providing by the LPI memory interface, a cache line address of the second cache line to the second memory interface.